## Line Chart: LongBench/RepoBench-P Accuracy vs. Compression Rate
### Overview
The chart compares the accuracy of four methods (MiniCache, xKV-2, Single SVD, xKV-4) across three compression rates (1x, 2x, 3.6x) on the LongBench/RepoBench-P benchmark. Accuracy is measured on a scale from 20 to 70, with a reference line at 70 accuracy.
### Components/Axes
- **X-axis (Compression Rate)**: Labeled "Compression Rate" with markers at 1x, 2x, and 3.6x.
- **Y-axis (Accuracy)**: Labeled "Accuracy" with a range from 20 to 70.
- **Legend**: Located at the bottom-left corner, associating:
- Dark blue squares: MiniCache
- Orange circles: xKV-2 (Ours)
- Teal diamonds: Single SVD
- Red circles: xKV-4 (Ours)
- **Reference Line**: A dashed black line at 70 accuracy.
### Detailed Analysis
1. **MiniCache (Dark Blue Squares)**:
- 1x: 40 accuracy
- 2x: 37 accuracy
- 3.6x: 38 accuracy
- *Trend*: Slightly decreases then stabilizes.
2. **xKV-2 (Orange Circles)**:
- 1x: 64 accuracy
- 2x: 62 accuracy
- 3.6x: 50 accuracy
- *Trend*: Gradual decline.
3. **Single SVD (Teal Diamonds)**:
- 1x: 60 accuracy
- 2x: 50 accuracy
- 3.6x: 39 accuracy
- *Trend*: Steep decline.
4. **xKV-4 (Red Circles)**:
- 1x: 68 accuracy
- 2x: 67 accuracy
- 3.6x: 65 accuracy
- *Trend*: Minimal decline.
### Key Observations
- **xKV-4 (Red)** maintains the highest accuracy across all compression rates, staying closest to the 70 accuracy reference line.
- **xKV-2 (Orange)** and **Single SVD (Teal)** show significant accuracy degradation as compression increases.
- **MiniCache (Dark Blue)** performs the worst, with accuracy dropping below 40 at higher compression rates.
- The red dashed line at 70 accuracy acts as an aspirational benchmark, none of the methods reach it.
### Interpretation
The data demonstrates that **xKV-4 (Ours)** is the most robust method, retaining high accuracy even at 3.6x compression. In contrast, other methods (xKV-2, Single SVD, MiniCache) experience notable accuracy loss under compression, with MiniCache being the least effective. The near-flat trend of xKV-4 suggests it is optimized for compression efficiency without sacrificing performance, while other methods prioritize accuracy at lower compression rates. The 70 accuracy reference line may represent an ideal target for future improvements.
